Somehow I'm kinda into this because everyone seems dumb and/or and miserable. The main character treats this like the stupid game world where there's all these idiotic contrivances so that there can be male couples for female readers to cheer on that it is, but for everyone else it's a horrible nightmare where somehow titles and privileges are hereditary even though the dominant form of romance is homosexual. There's not much mention of women and how they're treated, but considering the game's story has the sister bear a child just for convenience and that there's a social movement where the powerful use a woman to have a child and otherwise don't seem to care about them... well, it's not good.
It's kind of casually creating a nightmarish world that the main character just finds annoying because she knows all life is transitory and has seen this story before, but everyone else in this world is taking it seriously and feels trapped and pressured.